6D ATB-1 Switch Helmet Switch It Up When it comes to BMX and hardcore MTB riding, you'll want excellent head protection. The 6D ATB-1 Switch Helmet is a highly advanced full-face helmet for BMX and MTB. Its patented Omni-Directional Suspension technology minimizes linear and rotational accelerations during impacts, providing superior protection. The helmet's lightweight carbon fiber shell and dual-layered EPS liner provide increased protection while ensuring comfort during extended rides. Trusted by top racers worldwide, the ATB-1 is the ideal choice for those who prioritize safety, performance, and style. Features Omni-Directional Suspension technology minimizes linear and rotational accelerations during impacts Air-Gap ventilation system helps keep your head cool Genuine Cool Max antibacterial comfort liner Emergency release cheek pads with Super Cool foam Clavicle cut-away provides increased clavicle clearance Sternum pad provides added protection to the chin, jaw, and sternum SPECIFICATIONSCore Material Dual-Layered EPSClosure system-Safety Certifications Exceeds EN1078, ASTM F-1952-10 and CPSC 16CRF 1203Intended Use BMX, MTBWeight+/- 1380g Size Extra Small Small Medium Large Head Circumference (cm)53 - 54cm55 - 56cm57 - 58cm58 - 59cm | 6D Helmets | Atb-1 Switch Helmet Men's | Size Small In White